EP 1286020 A3 20031217 - Method for repairing an apertured gas turbine component
Title (en)
Method for repairing an apertured gas turbine component
Title (de)
Verfahren zum Reparieren eines gelöcherten Gasturbinenbauteils
Title (fr)
Méthode de réparation d'un composant perforé d'une turbine à gaz
Publication
Application
Priority
US 93589601 A 20010823
Abstract (en)
[origin: EP1286020A2] A method is disclosed for repairing defects in a gas turbine component 10 that comprises a substrate 58 and an existing coating 44 on the substrate 58. The article 10 includes cooling holes 18 having a predetermined air flow requirement and an outer shaped portion 52 and an inner metering portion 60. The method comprises removing the existing coating 44 and recoating the surface of the article with a nonoriginal coating. After the nonoriginal coating is applied onto the component, the cooling holes 18 that meet a predetermined inspection criteria are reworked to remove the excess nonoriginal coating deposited in the outer shaped portion 52 of the cooling holes 18. The reworking is done by receiving an electrode 52, having only a shaped portion with a preselected shape, in the outer shaped portion 50 of the cooling holes 18 thus restoring the cooling holes to the predetermined air flow requirement. <IMAGE>
IPC 1-7
IPC 8 full level
B23H 9/10 (2006.01); B23H 9/14 (2006.01); B23K 31/00 (2006.01); B23P 6/00 (2006.01); C23C 4/02 (2006.01); C23C 4/18 (2006.01); C23C 28/04 (2006.01); F01D 5/00 (2006.01); F01D 5/18 (2006.01); F01D 5/28 (2006.01); F02C 7/00 (2006.01)
CPC (source: EP US)
B23H 9/10 (2013.01 - EP US); B23H 9/14 (2013.01 - EP US); B23P 6/002 (2013.01 - EP US); C23C 4/02 (2013.01 - EP US); C23C 4/18 (2013.01 - EP US); C23C 28/32 (2013.01 - EP US); C23C 28/345 (2013.01 - EP US); C23C 28/3455 (2013.01 - EP US); F01D 5/005 (2013.01 - EP US); B23P 2700/06 (2013.01 - EP US); F05D 2230/12 (2013.01 - EP US); F05D 2230/90 (2013.01 - EP US); F05D 2250/232 (2013.01 - EP US); F05D 2260/202 (2013.01 - EP US); Y10T 29/49318 (2015.01 - EP US); Y10T 29/49339 (2015.01 - EP US); Y10T 29/49341 (2015.01 - EP US); Y10T 29/49721 (2015.01 - EP US); Y10T 29/49726 (2015.01 - EP US); Y10T 29/4973 (2015.01 - EP US); Y10T 29/49746 (2015.01 - EP US)
Citation (search report)
- [A] EP 1101563 A2 20010523 - GEN ELECTRIC [US]
- [A] WO 9923273 A1 19990514 - SIEMENS AG [DE], et al
- [A] US 5972424 A 19991026 - DRAGHI PETER JON [US], et al
- [A] US 6210488 B1 20010403 - BRUCE ROBERT W [US]
- [A] US 5605639 A 19970225 - BANKS JOHN H [US], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1286020 A2 20030226; EP 1286020 A3 20031217; EP 1286020 B1 20070117; EP 1286020 B2 20130814; DE 60217590 D1 20070308; DE 60217590 T2 20071011; DE 60217590 T3 20131010; JP 2003155935 A 20030530; SG 104974 A1 20040730; US 2003037436 A1 20030227; US 7204019 B2 20070417
DOCDB simple family (application)
EP 02254349 A 20020621; DE 60217590 T 20020621; JP 2002242854 A 20020823; SG 200203981 A 20020702; US 93589601 A 20010823